TRB’s National Cooperative Highway Research Program (NCHRP) Report 627: Traffic Safety Evaluation of Nighttime and Daytime Work Zones explores the crash rates for nighttime and daytime work zones and examines management practices that promote safety and mobility in work zones. The report also highlights work-zone crash reporting suggestions designed to help improve the data collected on work zone crashes.
The following appendices to NCHRP Report 627 are available online:
Appendix A: Data Collection, Reduction, and Analysis in California, North Carolina, Ohio, and Washington
Appendix B: EB Crash Analysis
Appendix C: MMUCC Guideline Data Elements
Appendix F: NYSDOT Accident Reporting Program – Data Elements and Attributes